Author: Sam McCall
Date: 2020-01-10T18:07:24+01:00
New Revision: 4c5a4514d14537cae5459e03d1fea422664b3bc2

URL: 
https://github.com/llvm/llvm-project/commit/4c5a4514d14537cae5459e03d1fea422664b3bc2
DIFF: 
https://github.com/llvm/llvm-project/commit/4c5a4514d14537cae5459e03d1fea422664b3bc2.diff

LOG: [clangd] Fix targetDecl() on certain usage of ObjC properties.

Summary:
In particular there's a common chain:
  OpaqueValueExpr->PseudoObjectExpr->ObjCPropertyRefExpr->ObjCPropertyDecl
and we weren't handling the first two edges

Reviewers: dgoldman, kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, jfb, usaxena95, 
cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72494

Added: 
    

Modified: 
    clang-tools-extra/clangd/FindTarget.cpp
    clang-tools-extra/clangd/unittests/FindTargetTests.cpp

Removed: 
    


################################################################################
diff  --git a/clang-tools-extra/clangd/FindTarget.cpp 
b/clang-tools-extra/clangd/FindTarget.cpp
index 119b932956be..d8ce0b69283f 100644
--- a/clang-tools-extra/clangd/FindTarget.cpp
+++ b/clang-tools-extra/clangd/FindTarget.cpp
@@ -334,6 +334,12 @@ struct TargetFinder {
       void VisitObjCProtocolExpr(const ObjCProtocolExpr *OPE) {
         Outer.add(OPE->getProtocol(), Flags);
       }
+      void VisitOpaqueValueExpr(const OpaqueValueExpr *OVE) {
+        Outer.add(OVE->getSourceExpr(), Flags);
+      }
+      void VisitPseudoObjectExpr(const PseudoObjectExpr *POE) {
+        Outer.add(POE->getSyntacticForm(), Flags);
+      }
     };
     Visitor(*this, Flags).Visit(S);
   }

diff  --git a/clang-tools-extra/clangd/unittests/FindTargetTests.cpp 
b/clang-tools-extra/clangd/unittests/FindTargetTests.cpp
index f34205a81f30..263d0154c9be 100644
--- a/clang-tools-extra/clangd/unittests/FindTargetTests.cpp
+++ b/clang-tools-extra/clangd/unittests/FindTargetTests.cpp
@@ -503,15 +503,15 @@ TEST_F(TargetDeclTest, ObjC) {
   EXPECT_DECLS("ObjCPropertyRefExpr", "- (void)setX:(int)x");
 
   Code = R"cpp(
-    @interface Foo {}
-    @property int x;
+    @interface I {}
+    @property(retain) I* x;
+    @property(retain) I* y;
     @end
-    void test(Foo *f) {
-      [[f.x]] = 42;
+    void test(I *f) {
+      [[f.x]].y = 0;
     }
   )cpp";
-  EXPECT_DECLS("ObjCPropertyRefExpr",
-               "@property(atomic, assign, unsafe_unretained, readwrite) int 
x");
+  EXPECT_DECLS("OpaqueValueExpr", "@property(atomic, retain, readwrite) I *x");
 
   Code = R"cpp(
     @protocol Foo


        
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